Mower blade lock



FIG. 1 is a top-front perspective view of a mower blade lock showing my new design;

FIG. 2 is a bottom-rear perspective view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a rear view thereof. 

CLAIM The ornamental design for a mower blade lock, as shown and described. 